Joss Whedon says that he wasn't sure about Guardians of the Galaxy when he was first told that Marvel were going to bring the story to the big screen.
But the Avengers Assemble filmmaker says that it all started to make sense when James Gunn was brought on board and had some good ideas for the project.
Speaking to Collider the director said: "You know, it seemed out there to me too. I think it came from Kevin and I sort of went ‘I don’t know about this,’ and then they brought on James [Gunn] and he really turned it around...
As soon as they said James the movie started to make sense to me in a way the movie hadn’t. ‘Oh, this isn’t a guy who’s going to chase Star Wars, he’s going to make a James Gunn movie, and for James the first thing was ‘I love Rocket.
"It’s all the raccoon’ and a lot of people were like 'really, a raccoon?’ and he’s like ‘nah, the raccoon is the heart‘ and knowing that I felt very safe.
"And then casting Chris Pratt... I was just there before they started production, and seeing all the designs, I got really jealous. I was like ‘why can’t I make this movie?’ I really turned a 180 on that one."
Chris Pratt is going to be joined on the cast list by Zoe Saldana, Lee Pace, Karen Gillian and John C. Reilly.
The movie is set for a summer 2014 release and filming is set to get underway any time.
As for Whedon he is working on Avengers 2, which is already the most anticipated film of summer 2015.
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